Mechanics testing: Oracle will *always* reveal the orc target's true role, UNLESS the target has been suited - then it'll show the suited role. This includes cops (they will show as Sane); that's because all cops start with a Sane Cop suit.
In a no-reveal setup, an oracle will not be revealed -- however, their orc target will. If the orc self-orced, their role will be revealed as usual, even if janned.